The result of the research it appears that average surface pressure. The average value after trials (̅ x = 10.00) more than before the trial (̅ x = 7.67) and test pressure compressor tools. With the average after trial (x = 32.09 ̅) more than before the trial (̅ x = 27.12) and slap the ball, badminton, with the average after trial (15.00 x = ̅) more than before the trial (x = 12.00 ̅), statistical significance level .05.
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